Get a leg up, a head start, an advantage. Get a clear cut lead on your competition with the Roto Grip Defiant Edge bowling ball!

“GUTS”Featuring the same technological advancement found in the Defiant, the uniqueelliptical shape of the Paragon core defines predictability of axis migration and allowsyou to perfectly match up your ball reaction to the condition at hand.

“GRIME”The new Defiant Edge is the ideal complement to the original Defiant, providing theperfect combination of skid-hook-roll even on medium-heavy oil. Be sure to keep youroriginal Defiant on hand for those heavy oil situations.

How To Keep Your New Ball Reacting Strong

Use a clean, dry Storm microfiber towel during competition

At the end of the session, use Storm Reacta Clean and spray liberally over the entire surface of the ball

Rub your hands over the surface of the ball in a scrubbing motion for 15-20 seconds

Towel off the ball until dry

Every 10 Games - Re-polish surface with Storm Reacta Shine

Every 30 Games - Scuff surface with Abralon and re-polish with Storm Reacta Shine